What color is #231C1D?

#231C1D is #231C1D (35, 28, 29 in RGB; hsl(351, 11%, 12%)). It sits in the red family. Contrast is 16.73:1 on white and 1.26:1 on black.

Is #231C1D accessible for text?

Yes for normal text on white at 16.73:1 (WCAG AA). Still verify large and small text in a contrast checker before shipping.

How do I use #231C1D in CSS?

Use #231C1D, color: #231c1d;, or a custom property like --color-231c1d: #231c1d;. Nearest Tailwind-style token approximation: stone-800. Confirm contrast pairs against WCAG before production.

Color brief · Red

#231C1D (#231C1D) — practical notes

#231C1D (#231c1d) sits in the red family at about 351° hue, 11% saturation, and 12% lightness. Contrast is 16.73:1 on white and 1.26:1 on black, so white labels read more clearly on the swatch itself. Nearest Tailwind token: stone-800 (approximation unless the hex is an official scale stop).

body text, chrome, and dark-mode surfaces
text or icons on a white canvas

On a black or near-black UI, #231c1d is 1.26:1. Prefer it as a fill, border, or large heading rather than 16px copy.

Check contrast Open in color picker Build a palette

Specs & accessibility references: W3C WCAG 2.1 contrast minimum · MDN CSS color values · CSS Color Module Level 4 · WebAIM contrast guide.

COLOR EXPLORER

THE ORIGINAL SWATCH#231C1D

100% opacity · sRGB

YOUR NEXT GREAT ACCENT

#231C1D

Explore the codes, find a readable pairing, and see how this color feels in a real design.

red family Calculated from HEX

HEX#231C1D

RGBrgb(35, 28, 29)

HSLhsl(351, 11%, 12%)

PUT IT INTO PRACTICE

A color is only half the story.

Try it with another color before you commit.

Open full contrast checker

MAKE ROOM FOR SOMETHING GOOD

A little color. A whole lot of possibility.

Selected text: #231C1D

Preview textText size 24px

CONTRAST RATIO16.73:1

AA · normal text: Pass
AA · large text: Pass
AAA · normal text: Pass

Normal text: AA 4.5:1, AAA 7:1. Large text: AA 3:1 (24px regular or about 19px bold).

Against white16.73:1

Against black1.26:1

Results use the exact pair, at full opacity. WCAG contrast guidance ↗

A color worth keeping? Save it above or share it.

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Color codes

HEX

#231c1d

RGB

rgb(35, 28, 29)

HSL

hsl(351, 11%, 12%)

OKLCH

oklch(0.2351 0.0111 8.28)

CMYK

cmyk(0%, 20%, 17%, 86%)

CSS variable

--color-231c1d: #231c1d;

CMYK is an approximate reference; print output depends on the color profile. HSV and CMYK are not CSS color functions.

OKLCH

css

:root {
  --color231c1d-1: #231c1d;
}

Design systems

Nearest official tokens

An arbitrary HEX is not an official Tailwind, Material, or Bootstrap color. Distance is CIEDE2000.

Nearest Tailwind color

stone-800

Noticeably different · ΔE 3.72 · #292524

Nearest CSS named color

Black

Very different · ΔE 8.28 · #000000

Nearest Material color

grey-900

Very different · ΔE 5 · #212121

Nearest Bootstrap color

dark

Very different · ΔE 7.51 · #212529

Using this color

Where #231c1d works

Sensible jobs for this swatch

body text, chrome, and dark-mode surfaces
text or icons on a white canvas

On a black or near-black UI, #231c1d is 1.26:1. Prefer it as a fill, border, or large heading rather than 16px copy.

Family context: Energy, urgency, passion, and excitement. Often used for CTAs, alerts, and brands that want attention. Common uses still include buttons, charts, and accents in the Red range — always verify the pair for this exact hex in the contrast checker.

Similar & related colors

Nearby colors from the library by perceptual distance

Tailwind stone 800#292524 Tailwind stone 900#1C1917 Material You On Surface#1C1B1F Tailwind zinc 900#18181B Material Grey 900#212121 Tailwind neutral 900#171717 Tailwind zinc 800#27272A Tailwind neutral 800#262626 Tailwind stone 950#0C0A09 Tailwind zinc 950#09090B Tailwind neutral 950#0A0A0A Bootstrap dark#212529